Hearing protectors. General requirements Part 6:
Ear-muffs with electrical audio input
This standard requires all of the testing specified in EN 352-1 with the additional clause below tested on additional samples.
Sound output levels
The sound output levels of the device are measured using miniature microphones placed into the ear canals of human test subjects. The electrical input level at which 82dB(A) is measured at the ear is reported.